Apparatus for pressing, stamping, embossing, or printing flat furfaces.



. Na. s9s,a2|. Patented Apr. I, I902;

c. HUBER.

' APPARATUS FOR PRE SSING, S'I'ANIPING, EMBOSSING, 0R PRINTING FLAT SURFACES.

' (Application filed Jan. 15, 1902.

(No Nodal.) 2 sheets h met I.

I I I I I 2 I In Him Hm 1.111 II I II I I i l i t I 5 1' of k I 208526315625 I fmWezzzar No. 696,82l. Patented Apr. I, I902.

' C. HUBER.

APPARATUS FOR PBESSING, STAMPING, EMBOSSING, 0R PRINTING FLAT SURFACES.

(Application filed Jami. 18, 190B.) (No Model.) 2 Sheets-Sheet 2.

' lll I W U ITED STATES PATENT omen HUBERPRESSUNG GESELLSC'HAFT MIT BESCH CARLSRUHE, BADEN, GERMANY, A" CORPORATION'QEIGEBMANYJ APPARATUS FOR PRESSING, STAMPING, E

wisossme, OR PRI'NTlllG FLA ruaF/leta,

\p sraorrxohrron forming part of Letters Patent No.696,82l dated Aprilf1,..lQQ2,

' Original application filed February 4, 190], Serial No. 45,932.

T0 on whom it may concern.- I

Be it known that I, CARL HUBER, acitizen of Germany,residing at 38 Beiertheimer-Allee,

Oarlsrnhe, Baden, Germany, have invented a certain new and useful Apparatus for Press ing St-amping, Embossing, or Printing'Flat Surfaces, (for which application has been made for a patent in Germany, dated October 3, 1900; in Great Britain, dated November 26, 1900, No. 21,359, and in France, dated November 28, 1900, No. 294,160,) of which the following is specification. I t This invention,'which is'a divisionof my application Serial No. 45,932, relates to apparatus ,for pressing, stamping, and embossing flat surfaces by means of whicha sharplydefined design may be produced without injurious strain or deformation of the matrix anddie.

Theinvention consists, essentially, in'the use of a water-chamber having flexible walls extending continuously all around it, which is placed in a receptacle constructed to withstand high internal pressure. By virtue of the well-known property of liquids to transmit pressure equally in all directions, when such chamber is pressed upon a surface the water con tents of the chamber produce'ia uniform pressure over the whole of the surface to be pressed.

The invention is particularly applicable for copper-plate printing, inasmuch-as the plates are .in no wise deformed, while in the usual method of printing by means of rollers the sharpest printing-lines are-not obtainable.

In the accompanying drawings, Figuresl', 2, and '3 are difierent forms of a press constructed for operating according to this invention. v g t Fig. 1 shows a press in which the pressure is exerted by the hydraulic ram 10, and the hermetically-closed water'chamber n, of flexible material, extending continuously all around it, serves as the bed-plate or abutment-surface. In this construction the water-chamu ber-is placed in a receptacle 'r,'built up'of three rings, so as to withstand high internal pressure. The end piece t of the hydraulic ,Divided and this wales tiled hungry is, 1902 sat;

(No model.)

.ram 19, on whichend piece th'e'niatrixor.

ceptacle. 'The surface!) to the like'lies on: thematrix i of the ram orstam'p. The water-chamber'n,

arranged ina receptac e 1'3-j'as describedw h reference to Fig. 1, is provided within. pipel,

which communicates'with a pump or thelike t for in troducingwater at high pressure into j the chamber. The matrix m is carried'in a" 5:; carrier 25-, resting Iona wedge 7c,'whicl 1f;allows j The operation 3 consists in first bringing the matrixwith the plate to be embossed'resting'on'it into position under thewater-chamber and then'fe'X- v erting the necessary pressure by pumping it ;to be raised- 'or loweredf water into the chamber.-' It is obvious that, the requisite pressure may also be exerted by means of a screw-press or an eccentric press 76 instead of hydraulically. It is alsol'obvious that more than one object may be pressed'in I this manner between water-chambers in "the receptacle. Thus Fig. 3 showsa screw-press 10, operating, according to this invention, 'driven by friction-gear '9. Here the arrange-- mentis such that a number of ,flat surfaces 6 may be embossed by meanspfmatricesm between a corresponding number of hermet:

icfally-closed flexible water-chambers min a {30 common container '1'. j, Thematerial of which the ,yvalls of the water-chamber is made may be of any kind suit able for the purpose, such as rubber or lead.

With regard particularly to the use of the invention in copper-plate printing it may be said that'the uniform pressure exerted by -means of the water-chamber on all parts of the plate presses the paper completely and uniformly into all the fine etchings on the I am awarethat it has been proposed to use in printing a flexible diaphragm forced by fluid-pressure exerted behind it against the material to befprinted upon when this is laid 5 on. the printing-surface.

In such arrange- AN TER" IIAFTUNG'," or

. M r t T v m rests,'fits tightly into themouth'ofithe re: 59'

r-sew producing leakage.

. Having thus described the nature of this einvention'and the best means I know of carrying the same into practical effect, I claim-- 1. Apparatus for pressing stamping embossing or printing flat surfaces comprising a water-chamber whose walls are formed of flexible material extending continuously all around, a strong receptacle confining said water-chamber so as to leave only the surface which is to exert pressure exposed, and means for bringing the surface to be impressed together with the surface for producingthe impression thereon into forcible contact with the said exposed surface of the chamber, substantially as described.

2. Apparatus for pressing stamping embossing or printing flat surfaces comprising a water-chamberwhose walls are formed of flexible material extending continnouslyall around, a strong receptacle confining said chamberso as to leave only the surface which is to exert pressure exposed, and having its walls extended beyond such surface, a bedplate carrying the surface to be impressed and the surface for producing the impression and adapted to fit within the projecting walls of the strong receptacle,-.and means for bringing the surface to be im pressed into forcible contact with the exposed surface of the waterchamber substantially as described.

3. Apparatus for pressing stamping embossing or printing flat surfaces comprising a'water-chamber whose walls are formed of flexible material extending continuously all around, a strong receptacle confining said chamber so as to leave only the surface which is to exert pressure exposed, means for forcing liquid under pressure into said chamber,

and means for bringing the surface to be impressed together with the surface for producing the impression thereon into forcible contact with the said exposed surface of-the chamber, substantially as described. a

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

, CARL HUBER. Witnesses: I

JACOB ADRIAN, II. W. HARRIS. 

